3-5-R and 4-5-6 Clutch Piston Air Check

Fig 1: View of 3-5-R and 4-5-6 Clutch Piston Air Check

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Case Cover Assembly NOTE: The fluid seal rings should be in place and not damaged.
2	4-5-6 Clutch Feed Fluid Passage CAUTION: Regulate the air pressure to 40psi maximum. High pressure could cause the piston to over travel and damage the piston seals. Procedure Apply shop air to the 4-5-6 clutch feed passage. Observe the 4-5-6 piston movement. NOTE: Minimal piston movement and excessive air leaking could indicate damage to the 4-5-6 piston seals or improper assembly.
3	3-5 Rev Clutch Feed Fluid Passage CAUTION: Regulate the air pressure to 40psi maximum. High pressure could cause the piston to over travel and damage the piston seals. Procedure Apply shop air to the 3-5-Rev clutch feed passage. Observe the 3-5-Rev piston movement. NOTE: Minimal piston movement and excessive air leaking could indicate damage to the 3-5-Rev piston seals or improper assembly.

Callout

Component Name

Case Cover Assembly

NOTE:

The fluid seal rings should be in place and not damaged.

4-5-6 Clutch Feed Fluid Passage

CAUTION:

Regulate the air pressure to 40psi maximum. High pressure could cause the piston to over travel and damage the piston seals.

Procedure

NOTE:

Minimal piston movement and excessive air leaking could indicate damage to the 4-5-6 piston seals or improper assembly.

3-5 Rev Clutch Feed Fluid Passage

CAUTION:

Regulate the air pressure to 40psi maximum. High pressure could cause the piston to over travel and damage the piston seals.

Procedure

NOTE:

Minimal piston movement and excessive air leaking could indicate damage to the 3-5-Rev piston seals or improper assembly.